CSF 5-HIAA Predicts Suicide Risk After Attempted Suicide

Suicide risk after attempted suicide, as predicted by cerebrospinal fluid (CSF) monoamine metabolite concentrations, was studied in a sample of 92 psychiatric mood disorder inpatients admitted shortly after attempting suicide. The potential of the serotonin metabolite 5-hydroxyindoleacetic acid (5-HIAA) in the CSF to predict suicide risk within the first year after attempted suicide was studied by means of survival analysis after median split sub-grouping. Eleven patients (12%) committed suicide within 1 year after attempted suicide. Eight of these belonged to the below-the-median (< 87 nM) CSF 5-HIAA subgroup, that is, the suicide risk was 17% as compared with 7% among those with above-the-median CSF 5-HIAA. The cumulative number of survived patient-months during the first year after attempted suicide was significantly lower in the low CSF 5-HIAA subgroup. It was concluded that low CSF 5-HIAA predicts short-range suicide risk after attempted suicide in mood disorder psychiatric inpatients. These findings lend further support to the serotonin hypothesis of suicide risk.     

Personal Values and Intended Self‐Presentation during Job Interviews: A Cross‐Cultural Comparison

This study examined the impact of personal values on intended self‐presentation during job interviews among German, Ghanaian, Norwegian, and Turkish students (total N= 1,474). We also sought to explain cultural differences in self‐presentation among these groups. The Cultural Impression Management Scale for applicants (CIM‐A) and the Portrait Values Questionnaire were administered. A multigroup MIMIC model with invariant measurement and structural weights was supported, in which achievement, security, and benevolence values predicted a latent impression management factor. Intended impression management scores were significantly higher in the Ghanaian and Turkish samples than in the Norwegian and German samples. Values (achievement and security) accounted for 19.6 per cent of the cross‐cultural differences in self‐presentation. Adding acquiescence as an additional predictor (interpreted here as a measure of communication style) decreased the cross‐cultural differences by 52.8 per cent. It is concluded that values are similarly related to intended self‐presentation across these four groups, even though the cross‐cultural differences in mean scores in both sets of variables were considerable.     

Virtually overcoming grammar learning with 3D application of Loci mnemonics?

The importance of contextual information for memory organization has been advocated by memory research and ancient mnemonic techniques (e.g., method of loci), yet it remains overlooked in most current study environments. Here, German noun gender was presented to 48 participants without prior knowledge of German, either without or within a provided spatial context consisting of a simulated virtual environment that could be explored freely. The three main findings were: in addition to reduced forgetting rate, memory was significantly enhanced when acquisition had occurred with a spatial context than without, in immediate, and delayed cued recall, as well as in delayed free recall. Second, visualization ability predicted spatial context efficiency as a memory aid for cued recall. Lastly, performance of the method of loci‐based method correlated with its perceived efficiency. This is the first study to experimentally demonstrate the potential effectiveness of computer‐induced spatial context on grammar learning.     

Sleep deprivation and hallucinations. A qualitative study of military personnel

Much anecdotal evidence suggests that sleep deprivation not only impairs performance, but also brings about other extraordinary effects like hallucinations. However, knowledge about how sleep deprivation may trigger hallucinations is limited. To qualitatively describe hallucinatory experiences during sleep deprivation 12 male military officers from the Norwegian Armed Forces who all had experienced at least one sleep loss-induced hallucinatory experience were recruited. Data were collected and analyzed by semi-structured interviews and thematic analysis. This resulted in the identification of three distinct main themes: (1) Modalities, (2) circumstances/triggers and (3) reactions to hallucinations. Hallucinations were experienced in several modalities (visual, auditory and multi-modality), although visual hallucinations seemed to dominate. Typical reported circumstances/triggers were sleep loss, physical exhaustion, time-of-day, low calorie intake, mental exhaustion and lack of external stimuli (low sensory and social input, boring situations, and monotonous activity). Negative emotions were dominant during the hallucinatory episodes. Often some reasoning and checking on behalf of the officers were necessary to differentiate between real percepts and hallucinations. In some cases the hallucinations caused erroneous actions. Retrospectively, most officers viewed their hallucinatory experiences in light of positive emotions and several emphasized having learned something from them. The results are discussed in relation to the existing literature and suggestions for future studies are outlined.     

Etchemendy on Squeezing Arguments and Logical Consequence: a Reply to Griffiths

Owen Griffiths has recently argued that Etchemendy’s account of logical consequence faces a dilemma. Etchemendy claims that we can be sure that his account does not overgenerate, but that we should expect it to undergenerate. Griffiths argues that if we define the relationship between formal and natural language as being dependent on logical consequence, then Etchemendy’s claims are not true; and if we define the relationship as being independent of logical consequence, then we cannot assess the truth of the claims without further information. I argue that Griffiths misconstrues Etchemendy’s theory and overstates the first horn of the dilemma: Etchemendy does see the relationship as being dependent on logical consequence, but that does not mean that his claims are not true.     

A Systematic Review of Courses,Training, and Interventions for Adoptive Parents

Adoption requires thorough preparations prior to the arrival of the child and support post-adoption among parents, to promote a positive parent–child relationship and healthy family functioning. The purpose of our study was, therefore, to systematically review the literature on pre- and post-adoption interventions for caregivers, and determine the possibility for conducting a meta-analysis. We searched 12 electronic databases and identified 7574 references that were considered for inclusion by two independent raters. Articles meeting the following criteria were retrieved in full-text; studies that examined the effects of (a) a pre- and/or post-adoption intervention, (b) against a comparator (including quasi-experimental studies), and (c) report on outcomes for parents. Finally, we included 10 studies that met our inclusion criteria and which were assessed in terms of reported intervention effects and study quality using Cochrane’s Risk of Bias tool. All studies were associated with a high risk of bias in at least one out of seven domains and unclear reporting on several domains. Eight studies examined intervention effects related to interpersonal functioning; three of which found positive effects. In addition, three studies investigated effects on parenting and stress, respectively; however, only one study demonstrated effects on parenting and none on parental stress. Overall, the study designs, interventions, and results were characterized by substantial heterogeneity, making a meta-analysis unfeasible. In conclusion, the results from the included studies in our review does not point in any particular direction. The most consistent finding across studies was the lack of studies on pre-adoption interventions, and poor design and unclear reporting. Consequently, future studies should evaluate pre-adoption interventions, and need to use more rigorous design, transparent and comprehensible reporting, as well as more homogenous interventions and methods, to move the field forward in support of adoptive parents.